Ski binding



P 1950 A. SCHLYTTER 2,522,303

SKI BINDING Filed Dec. 18, 1947 I/Vl/Quro I 5,, W,M,MYM%

Patented Sept. 12 1950 sKI BINDING i Arild Schlytter, Fornebu,,near.Oslo, N o rway 1 Application December 18,1947, Serial No." 7 9 2,441'

In Norway November 19, 1943 Section 1, Public Law 690, August 8, 1946'Patentexpires November 19, 1963 1 Claim. 1

The present invention relates to ski bindings of the type wherein thestrap securing the shoe of the user to the ski in part consists of awire rope. In straps of this type it ispreviously known to effect thelength adjustment of the strap by providing a number of stop rings,balls, pearls or the like slidably arranged on the wire rope, a fixedenlargement being arranged at the end of the wire rope, whichenlargement when the wire rope is subjected to tension engages the ringsor the like thereby transferring the tension through the same to theholding means associated with the other part of the strap, preferablythe heel band or strap, The efiective length of the strap may then beadjusted by placing a greater or smaller number of rings or the likebetween the end of the wire rope or the enlargement provided on the sameand the said holding means.

In known embodiments of such straps, the rings or the like situated onthe side of the holding device opposite to the end of the wire rope onwhich the enlargement is situated, were freely slidable along the wirerope whereby the wire I rope, when untightened, for instance when theskis are carried or transported, may slide in the holding device andtend to slip out of the same, if the holding device is not speciallybuilt to meet this contingency.

It is the object of the present invention to provide an arrangementpreventing the said possibility of free movement of the rings or thelike along the wire rope and at the same time peras compared with thedevices previously used.

According to the invention this object is achieved by providing the wirerope with a helically wound elastic wrapping which by pressing againstthe rings situated outside of the holding device or against the holdingdevice itself, exercise a stretching action on the wire rope, therebymaintaining the same in a taut condition preventing the disengagement ofthe rings from the holding device even when the ski binding is out ofuse, as by transport of the ski. The holding device conveniently is madein the form of a sleeve or is provided with a sleeve of an interiordiameter corresponding to that of the rings in such a manner that a ringmay be introduced into the sleeve from one end or through an aperture inthe sleeve wall to abut against a throat or abutment at the other end ofthe sleeve and the sleeve is provided with a longitudinal slot J end ofthe sleeve 5.

of such width, that only the wire rope may be introduced into the sleevewhen the rings are so displaced that a portion of the wire rope ofsuflicient length is uncovered. Conveniently the holding device issecured to one end of the heel strap.

On the accompanying drawing an embodiment is shown of a strap providedwith length adjusting means in accordance with the present invention. InFigure 1 the entire strap is shown as seen from above, and Figure 2 is avertical longitudinal section of the holding device. The strap is heremade in the form of a continuous loop, but may of course be made of twoseparate side portions, each of them being provided with lengthadjusting means according to the invention.

Referring to the drawing l represents the wire rope, 2 the enlargementat one end of th wire rope and 3 the pressure rings which are passedround the wire rope and are slidable on the same. The end of the wirerope carrying the said rings is connected to the heel strap 4 by theholding device generally represented by l I, the end holding devicebeing provided with external screw threads which in a manner known perse may engage the helically wound wire constituting the heel strap 4,the other end of the Wire rope I being connected to the heel strap 4 bymeans of a conventional tightening device 6.

The sleeve 5 of the holding device H is provided with an aperture 1through which the rings 3 may be introduced and be brought to abutagainst a throat or flange 8 at the other end of the sleeve. The sleeve5 is provided with a longitudinal slot '9 through which the wire ropeproperv may be introduced when the rings 3 are slid along the wire ropeso as to uncover a sufiicient length of the wire rope. By th tighteningof the wire rope I by means of the tightener 6 the tension istransmitted to the heel strap 4 by the engagement of the enlargement 2at the end of the wire rope I with the rings 3 situated between theenlargement 2 and the throat 8 at the If the effective length of thestrap is shortened by placing a greater number of rings 3 between theenlargement 2 and the throat 8, the end of the, wire rope carrying thesaid rings 3 may extend more or less into the heel strap 4. I0represents the helical wrapping of the wire rope I which offers a goodprotection of the wire rope I and also, according to the invention,serves to keep such rings 3 which are situated outside of the holdingdevice ll pressed against the end face of the said device 3 therebymaintaining the wire rope tight so as to efiectively prevent thedisengagement of the wire rope with the rings, for instance when theskis are carried.

What I claim is:

A ski binding strap serving to secure the shoe to the ski, comprising incombinationla wire rope and a heel strap, connecting devices forconnecting the ends of the wire rope to the ends of the heel strap, oneof the said connecting devices consisting of a sleeve secured to the endof the heel strap and detachably holding the end of the wire rope, theouter end of the said sleeve being provided with an inwardly =bentflange, the end of the wire rope being provided with an enlargementadapted to engage the saidfiange, a number of rings slidable on the endportion of the wire rope and adapted to be disposed in the said sleevebetween the said flange of the same vand 1' the said enlargement on theend of the wire rope, and a helical spring coiled round the wire ropeoutside of the sleeve, exercising a pressure against rings situatedoutside of the sleeve, thereby maintaining the wire rope in a tightcondition.

} ARILDw SCI-ILYTITER.

V REFERENCES'CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS 840,242 France Jan. 11, 1939

